Sale 1:

https://backpack.tf/profiles/76561198089253101#!/compare/1580342400/1580428800

https://backpack.tf/profiles/76561198075415934#!/compare/1580428800/1580601600

https://backpack.tf/profiles/76561198129819677#!/compare/1580515200/1580601600

Bulk

Sale 2:

https://backpack.tf/profiles/76561198129819677#!/compare/1580601600/1580688000

https://backpack.tf/profiles/76561198950621219#!/compare/1580601600/1580688000

https://backpack.tf/profiles/76561198855537851#!/compare/1580601600/1580688000

Untrace

sale 3:

https://backpack.tf/profiles/76561198260686830#!/compare/1587168000/1587081600

https://backpack.tf/profiles/76561198850274253#!/compare/1587168000/1587081600

QS

sale 4:

https://backpack.tf/profiles/76561198421958844#!/compare/1586995200/1587081600

https://backpack.tf/profiles/76561198272935392#!/compare/1583884800/1587168000

Untrace

sale 5:

https://backpack.tf/profiles/76561198302384193#!/compare/1582848000/1582934400

https://backpack.tf/profiles/76561198236129312#!/compare/1582761600/1582934400

Untrace

sale 6:

https://backpack.tf/profiles/76561198236129312#!/compare/1582934400/1583539200

https://backpack.tf/profiles/76561197982127154#!/compare/1583452800/1583539200

sold for 13 keys

sale 7:

https://backpack.tf/profiles/76561197982127154#!/compare/1583798400/1583884800

https://backpack.tf/profiles/76561199011873091#!/compare/1583798400/1583884800

Sold for ~14 keys

sale 7:

https://backpack.tf/profiles/76561199011873091#!/compare/1583798400/1583884800

https://backpack.tf/profiles/76561198095553478#!/compare/1583798400/1583884800

Sold for HG Bolted + 1 key

use there

https://bot.tf/stats/listings/MLVGP08Z

B/O of 25 keys

Sale 8:

https://backpack.tf/profiles/76561198095553478#!/compare/1583884800/1583971200

https://backpack.tf/profiles/76561198057412106#!/compare/1583884800/1583971200

Sold for 15 keys

sale 9:

https://backpack.tf/profiles/76561198057412106#!/compare/1583971200/1584057600

https://backpack.tf/profiles/76561198305494036#!/compare/1583971200/1584057600

QS

sale 10:

https://backpack.tf/profiles/76561198305494036#!/compare/1585094400/1585180800

https://backpack.tf/profiles/76561198972294135#!/compare/1585094400/1585180800

https://backpack.tf/profiles/76561198343428818#!/compare/1585094400/1585180800

Untrace

sale 11:

https://marketplace.tf/items/tf2/30546;5;u59

$25.00 / $1.75 = 14.29 keys

$25.95 / $1.78 = 14.58 keys

$27.95 / $1.80 = 15.53 keys

Total sales @:

13, 14, 14, 15, 15, 16 keys

universal buyers up to 13.37 keys,

one high buyer for 13.46 keys,

calling 13 low,

taking 14 - 16 keys.